The water storage tank is a shell of revolution and is to be sprayed with two coats of paint which has a coverage of 16 m2 per liter. The engineer (who re- members mechanics) consults a scale drawing of the tank and detennines that the curved line ABC has a length of 10 mn and that its centroid is 250m from the centerline of the tank. How many liters of paint will be used for the tank includ ing the vertical cylin drial column? 6 m 2.5 m

The water storage tank is a shell of revolution and is to be sprayed with two coats of paint which has a coverage of 16 m2 per liter. The engineer (who re- members mechanics) consults a scale drawing of the tank and detennines that the curved line ABC has a length of 10 mn and that its centroid is 250m from the centerline of the tank. How many liters of paint will be used for the tank includ ing the vertical cylin drial column? 6 m 2.5 m